Canning apparatus.



W. LAWRENCE & G. SCOTT.

GANNING APPARATUS. APPLICATION FILED JULY 9, 1914.

1,132,726. Patented Mar. 23, 1915. Q

THE NORRIS PETERS CO. FHOTO-LITHQ, WASHINGTON. D. c

unirnn sra'rns PATENT onnion.

7 WILLIAM. LAWRENCE AND GILFORD SCOTT, 01? HOT SPRINGS, ARKANSAS.

GANNING APPARATUS.

Specification of Letters Patent.

To all whom it may concern:

Be it known that we, WILLIAM LAWRENCE and GILroRD Soor'r, citizens of the United States, residing at Hot Springs, in the county of Garland and State of Arkansas, have invented certain new and useful Improvements in Canning Apparatus; and we do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accom panying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

Our invention relates to canning machines, and is adapted particularly for domestic use.

It has for its object to provide a canning apparatus comprising a vessel adapted to contain water and which may be termed a boiler, and within which is anelevated heating chamber spaced apart from the walls and from the bottom of the boiler and which is provided with tubes or flues adapted to register with the ordinary openings in the top of a domestic stove so as to receive the products of combustion or gases therefrom and conduct them into the elevated heating chamber, from which chamber leads an exit flue adapted to be connected by a suitable flue with the opening from which the smoke pipe of the stove usually extends. The boiler is thus adapted to be heated by the heat radiating from the top of the stove and also by the products of combustion or gases passing from the stove into the elevated heating chamber within the boiler, thereby materially shortening the time required to boil the water contained in the boiler for the purpose of cooking or heating the fruit or vegetables being canned. While the boiler is particularly constructed with the view of employing the same in connection with any ordinary and approved type of heating stove it is also adapted to be used otherwise than in the manner just specified as will hereinafter appear.

To the accomplishment of the foregoing and such other objects as may hereinafter appear the invention consists in the features of construction hereinafter particularly described and then sought to be clearly demuch more quickly than otherwise.

fined by the claims, reference being had to the accompanying drawing forming a part hereof and in which' Figure 1" is aside elevation showing in PatentedMar. 23,1915. 7

dotted lines a heating stove of any approved type and upon which is a boiler, the same being partly broken away to illustrate the contained heating chamber; Fig. 2 is a transverse central vertical section through the boiler, with a supporting tray supported therein; Fig. 3 is a plan view of the boiler, showing a supporting tray suspended therein.-

In the drawing the numeral 1 designates the main vessel of the boiler within which".

is an internal heating chamber 2, the same bemg spaced apart from the bottom of the boiler as well as from all sidesof the boiler and which is supportedby tubes or fiues 3 adapted to fit over openings in a stove of If any suitable type and which is illustrated by dotted lines in the drawing. From the internal heating chamber 2 extends laterally a pipe or flue 4 which extends through one wall of the main vessel and'is adapted to connect by a supplemental-flue o with an upright flueor pipe 6 which is adaptedto be fitted to the usual opening fromwhich ordinarily extends the smoke pipe, the flue .6 being intended to replace the ordinary' smoke pipe of a stove and to connect at its upper end with the main s m0ke pipe 7 or heater through the fines 3 will enter the internal heating chamber, heating the water in the main vessel and thus supplementing the heat radiated from thestove or heater so that the water within the main vessel or boiler may be brought to a boiling point The products of combustion or gases pass from the internal heating chamber through the pipes or flues 4.- and 5 into the upright pipe or stack 6 and pass therefrom into the chimney together with such products of combustion as may pass from the stove into the lower portion of said pipe or flue.

The numeral 8 designates a tray of any approved form having a perforated bottom 9 and provided with hinged links or bails 10 formed with a return bend 11 adapted to rest upon the top rim of the boiler so as to support the tray Within the boiler.

In the operation of canning with the apparatus specified, the main vessel 1 is filled with water and the tray supported therein by the return bends of the bails, and the jars or cans containing the fruit or vegetables are then placed within the tray and caps placed thereon, whereupon the tray is lowered into the boiler until the cans 'or jars are practically submerged therein and allowed to remain until the contents have been sufiiciently heated or cooked for preservation. The water within the main vessel entirely surrounds the internal heating chamber 2 so that the body of the water is heated from this internal chamber through which the gases or products of combustion pass from the stove as well as heated by the heat radiated from the top of the stove, and thus the water is quickly brought to a boiling state or condition so that the operation of canning is materially expedited.

Instead of applying the boiler to a stove in the manner described, it may be placed over a pit' formed in the ground and in which a fire may be built so that the products of combustion from the pit will pass through the upright fiues or tubes 3 into the internal heating chamber and from thence through the lateral flue at into the main fiue or stack 6. It will thus be observed that the apparatus is capable of use in more than one way and with good results.

lhe device is comparatively inexpensive to construct, is not liable to get out of working condition, is easily handled or manipulated, and can be readily adjusted or removed as occasion may require.

Having described our invention and set forth its merits, what We claim is 1. A canning apparatus comprising a main water vessel, an internal heating chamber spaced from the bottom and from all sides of the main vessel, flues extending upwardly from the bottom of the water vessel and supporting said heating chamber and in communication therewith and open at their lower ends to the exterior of the water vessel to receive heating gases or products of combustion, an exit flue leading laterally from the internal heating chamber and ex tending through the wall of the main water vessel, and a separable stack-flue having open upper and lower ends and provided with a lateral flue to register with the lateral flue leading from the internal heating chamber of the vessel, substantially as and for the purposes described.

2. A canning apparatus comprising a main water vessel, an internal heating chamber spaced from the bottom and from all sides of the main vessel, fiues extending up wardly from the bottom of the Water vessel and supporting said internal heating chamber and communicating therewith and having their lower ends opening through the bottom of the water vessel to receive heating gases or products of combustion, and an exit fiue leading laterally from the internal heating chamber and extending through the wall of the main vessel, substantially as and for the purposes described.

' In testimony whereof we affix our signatures in presence of two witnesses.

WILLIAM LAWRENCE. GILFORD SCOTT. Witnesses:

BENJ. H. RANDOLPH, JAMES E. HoGUE.

Copies of this. patent may be obtained for five cents each, by addressing the Commissioner of Eatents,

Washington, D. 0. 

